Date: Thu, 19 Aug 2010 13:03:40 +0400 From: Denis Melnikov <dbmelnikov@gmail.com> To: freebsd-performance@freebsd.org Subject: Does ULE restrict available RAM? Message-ID: <AANLkTinD4T%2BMewLfQSnXUbvTHEHx7MNwu_DAw3Y2uXnp@mail.gmail.com>
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Hi! 7.0-RELEASE (amd64) RAM 33 GB (8*4096+2*512) 2 quad-core Xeons The server ran GENERIC kernel with 4BSD scheduler earlier. When loaded with ULE scheduler it has missed 8GB. dmesg: usable memory = 26829983744 (25587 MB) avail memory = 25999904768 (24795 MB) # dmidecode -t 17 | grep Size Size: 512 MB Size: 4096 MB Size: No Module Installed Size: 512 MB Size: 4096 MB Size: No Module Installed Size: 4096 MB Size: 4096 MB Size: No Module Installed Size: 4096 MB Size: 4096 MB Size: No Module Installed It looks like BIOS-level problem, but... maybe ULE restricts RAM? Hopefully, Denis
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